Machine for making coupling-pins, &amp;c.



PATBNTED MAY 24, 1904,

J. P. LOBER. MAGHINE; FOR. MAKING COUPLING PINS, &0.

APPLICATION FILE-D JUNE 18, 1903.

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No; 760,883. I ,PATENTED MAY24, 1904.

' J.F.LOBBR.

MACHINE FOR MAKING-COUPLING PINS, 6w.

APPLIGATION FILED JUNE 18. 1903.

N0 IODBL. 2 SHEETS-SHEET '2 UNITED STATES Patented May 24, 1904.

PAT T OF C Y MACHINE FoR MAKING couPLme-Pmsg-ac.

sPEcIrIcArIoN ma artf Letters Patent No. 760,883, dated. May '24, 1904'.

- Application filed June 18, 1903. ,Serial No. 162,117. 1N0 model.) I

1'0 a whom it may concern} Be it known that L-JOHNFRED LOBER, a citizen of the" United States, and-a resident of Pittsburg, in the countypf Allegheny and '5 State of Pennsylvania, have invented certain new and useful Improvements'in Machines for Making Coupling-Pins, &c of which the following is a specification.

The primary object of the invention-is to I provide a machine for making coupling-pins and similar articles in which the article is formed'at a single operation by forging or compressing the stock in opposing dies, one of which latter is longitudinally movable and,

separable, so as to release the completed'article and permit of its being ejected from the machine, the parts of the said: separable die closing at the proper time to receive the stock, and present practically a solid diein forming 20 the coupling-pin.

struction and combination of parts embodying the invention, all'as hereinafter described and specifically claimed.

position the same assumes in forging the coup ling-pin." Fig. 3 is a sectional'vi'ew-onthe line 3 3 of Fig. 2, the longitudinally-movableand separable die being shown in its forward or closed position; Fig.4 is 'a similar view looking in the opposite direction or toward, the stationary diet Fig'Q5 is a detail view of the die carried by the longitudinally-movable i and separable die-holders. Fig. 6 is a similar 4 view of the stationary die. Fig. 7 is adetail side elevation: of the longitudinally-movable part of the movable die-holder. Fig. 8 is 'a similar view of the other part of said movable die-holder. Fig. 9 is a view of the completed coupling-pin. v v e Referring to said drawings;Ajdesignates the bed'of the machine, which iis supported' at a suitable height by means of the legs wand is composed of the side pieces A 'and A con 5 nected at their forwardends by a cross-piece The invention consists in the particular con- In the accompanying drawings, forming a part'of this specification, Figure 1 isaslde A having a head A formed therewith, the i lattersupporting the stationary die herein-' ,after described. The rear end of the bed of the machine is contracted in width, and upon i the sidepieces thereof are mounted boxes 6 5, 5 5 E in whichis' journaled the main shaft B, carrying the fiy-wheelsB Banol a belt-pulley b, Between the side pieces saidshaft isprovided with a crank 11?, to which is connected a rod Z2 attached to the movable die C forreciprocat 66 'ingthesame. 'f z The side piece A of the bed-frame of the machine'is formed at its lower end with an '1 inwardly "-'projecting horizontal flange a, forming a track upon which slides the part 5 C of the movable die-holder,*and let into the iuppe'r surface of said side piece is a guide-. plate D, between whichlatter and the afore'- said fiangeortrack the said part C slides.

The side piece A ofthe bed-frame is also" 70 formed at its lower end with an inwardly-projecting' flange a wider than the aforesaid flange a= and -stepped,as sh0wn.- Upon the lower'step or ofiset, at the innerendthereof, is secured a plate e, the upper surface of'75 which is flush with the step above and its outer edge beveled to engage a corresponding f bevel 'of the laterally-projecting portion 0 of the part Cg-before mentioned. In this manner' the said part C is permitted to have a 30 ;direct longitudinal movement only, the said movement being imparted by the connecting rod 5 from the main shaft; i i

O designates the other part of the movable die-holder, the same being adapted to have 5 both a longitudinal movement :with. the part. C and a lateral FmoVementindependent thereof. To this endithe part C is mounted within the part C and upon the plate or slide 6 and is. guided in its. longitudinal and lateral move- 9 ments by means of a cam-plate F, the latter having a flange which engages a groove in the outer side of said part The parts 0 .and G are connected by a pin which is fast to and extends from a boss 0 on the part through a corresponding boss 0 on the part C and projects beyond the latter to engage a cam-plate 7L, bolted on the bed-plate of' the machine. This cam-plate h, in connecvtion with the pin 9, serves to impart a lateral I O0 motion to the part as the die-holder is reciprocated. Each part 0 and O of the movable dieholder is provided at its inner side with a recess in which is held the sectional die I, consisting of two sections held in the aforesaid die-holder parts, respectively, by means of set-screws 2'. This die is adapted to form the head of the coupling-pin, and the cavity therein is therefore shaped as shown in Fig. 5. The stationary die (designated by the letter J is made up preferably of two parts, which are inserted in the head A and held therein by the top plate a The stationary die bears at its rear end against a breastplate L, having an integral shank which passes through the head and is threaded at its outer end to receive a nut Z, by which the said breastplate is held rigidly in place. The stationary die forms the point of the pin, and the cavity is therefore shaped as shown in Fig. 6.

For the purpose of adjusting the cam-plate F and plate a laterally adjusting-screws f and e are provided, being threaded in the side piece A similar set-screws, as d, being threaded in the side piece A for adjusting the guideplate D, these adjustments taking up any wear. Provision is also made for longitudinally adjusting the cam-plate F by means of a setscrew f, threaded in a boss (4 at the forward end of the bed+plate.

N designates a transverse shaft which is located above the bed-frame of the machine and supported in boxes a, secured to upper ends of standards m, which latter are formed integrally with the side pieces of the bed-frame. The boxes are formed with depending pins 0, by which they are secured to the standards, said pins being engaged by transverse pins 0 and a set-screw 0 To the shaft N is secured a forwardly-projecting arm P, having at its forward end a depending finger p, which latter serves to eject the completed couplingpin, and to insure its proper engagement therewith said pin is bifurcated at its lower end. This ejector is operated from the main shaft by a rearwardly-projecting arm R, which latter is raised and lowered by a cam-lever S, mounted on the main shaft B.

In the operation of the machine a bar of metal, as m, Fig. 2, is placed in the stationary die while the movable die is in its rearward position, and as said movable die approaches the stationary die the laterally-movablepart C of the former first closes against the part C and upon the outer end of the bar of metal or stock, and a further forward movement presses the stock into the die I, which latter thereby forms the head of the coupling-pin simultaneously with the forming of the point in the stationary die. After the coupling-pin is formed the movable die moves rearward, and the pin g, riding upon the cam-plate 7L, slides the part C of the separable die-holder laterally or away from the part C, releasing the coupling-pin, which is then ejected from the die by means of the ejector P, which latter is operated at the proper time by the camlever S. Another bar is inserted in the stationary die and the operation repeated, and so on. It will be understood that the sections of the longitudinally-movable die close on the bar or stock :0 just prior to the limit of its forward movement, so that a comparatively solid die will be presented in which to press or forge the pin.

The machine is automatic in its operation except in so far as to require an attendant to feed the bars of metal into the stationary die, and as said bars are at red heat they are of course handled by tongs.

Though I have shown the machine provided with dies for making coupling-pins with heads and shoulders, it will be understood that other styles of coupling-pins may be forged in the machine and that other articles may be made thereby.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for making coupling-pins, &c., the combination with the stationary die, of a movable die composed of two parts one of which has a direct longitudinal movement in guides and the other a longitudinal movement therewith and lateral movement therein,means for imparting said longitudinal movement, and means for imparting said lateral movement.

2. In a machine for making coupling-pins, &e., the combination with the stationary die, of a movable die composed of two parts one of which has a direct longitudinal movement in guides to and from the stationary die and the other a longitudinal movement therewith and lateral movement therein; a reeiprocatingrod attached to the first-mentioned part, and cams for imparting the lateral movement to the last-mentioned part of the die, substantially as shown and described.

3. In a machine for making coupling-pins, &c., the combination with the stationary die, of-a die composed of two parts one of which is extended laterally to form guides in which the other is slidable laterally, means for longitudinally reciprocating the first-mentioned part of the die, and means for laterally moving the other part of said die, substantially as shown and described.

4. In a machine for making coupling-pins, &c., the combination with the stationary die, of a die comprising two parts longitudinally movable to and from the stationary die and slidable laterally one within the other, means for imparting such longitudinal movement, a pin fixed to one of the parts and slidable in the other, and a cam-plate upon which the outer end of the pin travels, whereby one of the parts of the movable die is moved to and from the other as said die is reciprocated.

5. In a machine for making coupling-pins,

&c., the combination with the stationary die, of a die comprising two parts slidable longitudinally in guide-plates, means for imparting vsuch longitudinal movement, a pin fixed to one of the parts and slidable in the other projecttionary die and slidable laterally one within the other, means connected to one of the parts for imparting a longitudinal movement thereto, a pin slidably connecting the parts, and

opposite cam-plates for operating the laterally-movable part of the die, together with an ejector operated by a cam-lever on the'main shaft and adapted to eject the finished pin when the parts of the separable die are open.

7. In a machine for making coupling-pins, &c., the combination with the bed-frame, of a stationary die at one end thereof, longitudinal guide-plates at opposite sides of the fram a die comprising two parts one having adirectlongitudinal movement between said gu1de-" plates to and from the stationary die and the other longitudinal and lateral movements, means connected to the longitudinally-movable part of the die for'impartingsuch movement thereto, a cam-plate F, serving asaguide for the laterally-movable part, a pin fixed to said laterally-movable part and projecting through a boss on the other part, and a cam-- plate it, upon which the end of the pin is adapted to ride, the cam-plates being so disposed that the parts of the movable and separable die will close ashort distance from the stationary die; together with means for ejecting the finished coupling-pin when the parts of the'movable die are open. I

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

.JNQFRED LOBER. Witnesses:

MARY A. WILsoN, HORACE S. BEALL. 

